I think I must be the Queen of harness buying. :P I've spent many hours trying to find the perfect harness. I've also spent alot of money on harnesses that now sit in the drawer never to be used again for various reasons.
I DID find the perfect harness after all this and I wouldn't EVER be without them at this point. They are called "ChokeFree Collars". Made by a husband and wife team. The husband (an aeronautical engineer) "invented" them with an idea from his wife. I worried at first that the velco wouldn't hold on Spring who can be a puller when she spies a squirrel down the street. I can promise you that that fear was bogus. The velcro is VERY firm and you REALLY have to pull to get it off.
I've got a number of colors. :P
Here's the link.